The elementary school:  Principles and problems/ 
edited by Joe L. Frost and G. Thomas Rowland 
 - USA:  Hougton Mifflin Company,  1969. 
 - 565p.:  ill.,  24 cm. 
<br/><br/>include index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>problems and principles 
<br/><br/><label>Dewey Class. No.: </label>372.12  / FRE 1969